Question

我是Android的新手，我试图在片段中显示自定义列表视图但是当我运行它时什么都没显示。有人帮我解决这个问题。这是我的代码：

    public class Tab1 extends Fragment
        implements ListView.OnItemClickListener{

    private ArrayList<Custom> fetch = new ArrayList<Custom>();
    private ContactsAdapter adapter;
    private ListView lv;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle saveInstanceState){

        View v = inflater.inflate(R.layout.tab_layout, container, false);
        Custom one = new Custom("Hoang Ha", "01672286349");
        Custom two = new Custom("Ha Link", "03203590176");

        fetch.add(one);
        fetch.add(two);

        lv =(ListView)v.findViewById(R.id.list);

        adapter = new ContactsAdapter(getActivity(), fetch);

        lv.setAdapter(adapter);

        lv.setOnItemClickListener(this);

        return v;

    }

public class Custom{ 
    private String contactName;
    private String contactPhone;

    public Custom(String st1, String st2){
        contactName = st1;
        contactPhone = st2;
    }

    public String getName(){
        return contactName;
    }

    public String getPhone(){
        return contactPhone;
    }

    public void setName(String st1){
        contactName = st1;
    }

    public void setPhone(String st2){
        contactPhone = st2;
    }
}

    @Override
    public void onItemClick(AdapterView<?> ad, View v, int position,
                            long id) {
        // TODO Auto-generated method stub

    }

    private class ContactsAdapter extends BaseAdapter{

        private FragmentActivity activity;
        private LayoutInflater inflater;
        private ArrayList<Custom> data;

        public ContactsAdapter (FragmentActivity a, ArrayList<Custom> d){
            activity = a;
            data = d;
            inflater = (LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        }

        @Override
        public int getCount() {
            // TODO Auto-generated method stub
            data.size();
            return 0;
        }

        @Override
        public Object getItem(int position) {
            // TODO Auto-generated method stub
            return position;
        }

        @Override
        public long getItemId(int position) {
            // TODO Auto-generated method stub
            return position;
        }

            @Override
            public View getView(int position, View convertView, ViewGroup parent) {
                // TODO Auto-generated method stub
                View v = convertView;
                     v = inflater.inflate(R.layout.list_row, null);

                TextView contact_name = (TextView)v.findViewById(R.id.contact_name);
                TextView phone_number = (TextView)v.findViewById(R.id.phone_number);

                //final Custom custom = entries.get(position);
                final Custom custom = data.get(position);
                contact_name.setText(custom.getName());
                phone_number.setText(custom.getPhone());
                return v;
        }
    }

}

这是我的标签xml代码：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/white"
    android:id="@+id/tab_layout"
>

    <ListView
        android:id="@+id/list"
        android:layout_height="match_parent"
        android:layout_width="match_parent"
        android:dividerHeight="1dp"
        android:divider="@color/white"
        />
</LinearLayout>

这是我的列表项xml代码：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:background="@color/light_dark"
    android:padding="5dip" >

    <TextView
        android:id="@+id/contact_name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/name"
        android:textColor="@color/white"
        android:typeface="sans"
        android:textSize="@dimen/font_medium"
        android:textStyle="bold"/>
    <TextView
        android:id="@+id/phone_number"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/name"
        android:textColor="@color/white"
        android:typeface="sans"
        android:textSize="@dimen/font_small"
        />

</LinearLayout>

Answer 1

@Override
public int getCount() {

     return data.size();
}

@Override
public Custom getItem(int position) {
     return data.get(position);
}

Fragment中的自定义ListView不起作用

1 个答案: